发明名称 |
КАТАЛИТИЧЕСКИЕ КОМПОЗИЦИИ ДЛЯ ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ И СПОСОБ ПОЛУЧЕНИЯ |
摘要 |
A method of making a solid procatalyst composition for use in a Ziegler-Natta olefin polymerization catalyst composition, said method comprising: contacting a precursor composition comprising a magnesium compound with a titanium halide compound and an internal electron donor in any order, in a suitable reaction medium to prepare a solid procatalyst composition, separating the solid procatalyst from the reaction medium, extracting the solid procatalyst composition by contacting the same one or more times with a liquid diluent at an elevated temperature for a period of time sufficient to prepare a solid procatalyst composition having a decreased titanium content compared to the titanium content of the solid procatalyst composition before said extraction, and recovering the solid procatalyst composition. |
申请公布号 |
RU2003137598(A) |
申请公布日期 |
2005.04.20 |
申请号 |
RU20030137598 |
申请日期 |
2002.02.20 |
申请人 |
ЮНИОН КАРБАЙД КЕМИКАЛЗ ЭНД ПЛАСТИКС ТЕКНОЛОДЖИ КОРПОРЕЙШН (US) |
发明人 |
ЧЕН Линфенг (US);КЕМП Ричард А. (US);НЕМЗЕК Томас Л. (US) |
分类号 |
C08F4/654;C08F4/658;C08F10/00 |
主分类号 |
C08F4/654 |
代理机构 |
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